Authorities say a burned body found near a Southern California lake isn't that of a missing college student but rather an unrelated murder victim.

Sheriff's Capt. Mike Parker says Wednesday that the remains found a week ago near Castaic Lake aren't those of 19-year-old Bryce Laspisa.

He says they belong to Lamondre Miles. Investigators believe the South Los Angeles man was killed in Hawthorne and his body dumped and burned. Three people have been arrested.

The body was found when firefighters doused a small brush blaze.

Meanwhile, the search continues for Laspisa, a Sierra College student who vanished last month while traveling from Northern California to visit his parents in Orange County. His SUV was later found on its side at the lake 40 miles northwest of Los Angeles.